scholarly journals Mucoadhesive electrospun nanofibers for drug delivery systems: applications of polymers and the parameters’ roles

2019 ◽  
Vol Volume 14 ◽  
pp. 5271-5285 ◽  
Author(s):  
Graciela Lizeth Pérez-González ◽  
Luis Jesús Villarreal-Gómez ◽  
Aracely Serrano-Medina ◽  
Erick José Torres-Martínez ◽  
José Manuel Cornejo-Bravo
2021 ◽  
Vol 04 ◽  
Author(s):  
Anna L.M.M. Toledo ◽  
Talita N. da Silva ◽  
Arianne C. dos S. Vaucher ◽  
Arthur H. V. Miranda ◽  
Gabriela C. C. Silva de Miranda ◽  
...  

Background: The demand for novel biomaterials has been exponentially rising in the last years as well as the searching for new technologies able to produce more efficient products in both drug delivery systems and regenerative medicine. Objective: The technique that can pretty well encompass the needs for novel and high-end materials with a relatively low-cost and easy operation is the electrospinning of polymer solutions. Methods: Electrospinning usually produces ultrathin fibers that can be applied in a myriad of biomedical devices including sustained delivery systems for drugs, proteins, biomolecules, hormones, etc that can be applied in a broad spectrum of applications, from transdermal patches to cancer-related drugs. Results: Electrospun fibers can be produced to mimic certain tissues of the human body, being an option to create new scaffolds for implants with several advantages. Conclusions: In this review, we aimed to encompass the use of electrospun fibers in the field of biomedical devices, more specifically in the use of electrospun nanofibers applications toward the production of drug delivery systems and scaffolds for tissue regeneration.


Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1968
Author(s):  
Mina Zare ◽  
Karolina Dziemidowicz ◽  
Gareth R. Williams ◽  
Seeram Ramakrishna

Electrospinning is an inexpensive and powerful method that employs a polymer solution and strong electric field to produce nanofibers. These can be applied in diverse biological and medical applications. Due to their large surface area, controllable surface functionalization and properties, and typically high biocompatibility electrospun nanofibers are recognized as promising materials for the manufacturing of drug delivery systems. Electrospinning offers the potential to formulate poorly soluble drugs as amorphous solid dispersions to improve solubility, bioavailability and targeting of drug release. It is also a successful strategy for the encapsulation of nutraceuticals. This review aims to briefly discuss the concept of electrospinning and recent progress in manufacturing electrospun drug delivery systems. It will further consider in detail the encapsulation of nutraceuticals, particularly probiotics.


2019 ◽  
Vol 51 ◽  
pp. 672-681 ◽  
Author(s):  
Saša Kajdič ◽  
Odon Planinšek ◽  
Mirjana Gašperlin ◽  
Petra Kocbek

2019 ◽  
Vol 16 (4) ◽  
pp. 272-294 ◽  
Author(s):  
Nawzat D. AL-Jbour ◽  
Mohammad D. Beg ◽  
Jolius Gimbun ◽  
A.K.M. Moshiul Alam

Chitosan is a polycationic natural polymer which is abundant in nature. Chitosan has gained much attention as natural polymer in the biomedical field. The up to date drug delivery as well as the nanotechnology in controlled release of drugs from chitosan nanofibers are focused in this review. Electrospinning is one of the most established and widely used techniques for preparing nanofibers. This method is versatile and efficient for the production of continuous nanofibers. The chitosan-based nanofibers are emerging materials in the arena of biomaterials. Recent studies revealed that various drugs such as antibiotics, chemotherapeutic agents, proteins and anti-inflammatory analgesic drugs were successfully loaded onto electrospun nanofibers. Chitosan nanofibers have several outstanding properties for different significant pharmaceutical applications such as wound dressing, tissue engineering, enzyme immobilization, and drug delivery systems. This review highlights different issues of chitosan nanofibers in drug delivery applications, starting from the preparation of chitosan nanofibers, followed by giving an idea about the biocompatibility and degradation of chitosan nanofibers, then describing how to load the drug into the nanofibers. Finally, the major applications of chitosan nanofibers in drug delivery systems.


2018 ◽  
Vol 198 ◽  
pp. 131-141 ◽  
Author(s):  
Kamyar Khoshnevisan ◽  
Hassan Maleki ◽  
Hadi Samadian ◽  
Shadab Shahsavari ◽  
Mohammad Hossein Sarrafzadeh ◽  
...  

Author(s):  
G.E. Visscher ◽  
R. L. Robison ◽  
G. J. Argentieri

The use of various bioerodable polymers as drug delivery systems has gained considerable interest in recent years. Among some of the shapes used as delivery systems are films, rods and microcapsules. The work presented here will deal with the techniques we have utilized for the analysis of the tissue reaction to and actual biodegradation of injectable microcapsules. This work has utilized light microscopic (LM), transmission (TEM) and scanning (SEM) electron microscopic techniques. The design of our studies has utilized methodology that would; 1. best characterize the actual degradation process without artifacts introduced by fixation procedures and 2. allow for reproducible results.In our studies, the gastrocnemius muscle of the rat was chosen as the injection site. Prior to the injection of microcapsules the skin above the sites was shaved and tattooed for later recognition and recovery. 1.0 cc syringes were loaded with the desired quantity of microcapsules and the vehicle (0.5% hydroxypropylmethycellulose) drawn up. The syringes were agitated to suspend the microcapsules in the injection vehicle.


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